99.999% of people in the world don't use the Bates method, so when they do close reading it does damage their vision if they are prone to myopia. I agree that the Bates method sounds good and plan to try it myself, but my statement was correct for all practical purposes, so let's not pick nits please.
I think that's a bit of a stretch to say 99.999% of people don't use the bates method. The bates method is meant to teach you to develop good habits. Many people don't need to do the bates method because they already have good vision/eye habits so reading close shouldn't damage their eyesight. Eyesight degeneration from poor diet for example is probably misdiagnosed as being caused by reading close.
If it's vision habits causing vision loss I tend to think that vision loss wouldn't slowly degenerate but the effect be immediate. Meaning that if you have perfect vision then your eye muscles must be working properly so vision loss must be a result of poor nutrition. But then again not many people probably have
perfect vision, and just how 'bad' do your habits have to be to cause vision to degenerate? Though why did less than 2% of the traditional Inuit have even any detectable Myopia? Yet now myopia is far greater in Inuit 30 years or younger than the elderly Inuit. And as discussed by Bates in the book, traditional people did lots of close work with art, tools, pottery etc and these people obviously did not study the Bates method.
I have decent vision, but very bad near vision habits, but it's not causing a slow degeneration in vision (yet?). If I have to stare at something very close for a long time my distance vision becomes significantly worse immediately, but after a night's sleep returns to normal.